The value of the financial instrument(s) that the original debt is being converted into in a noncash (or part noncash) transaction. "Part noncash" refers to that portion of the transaction not resulting in cash receipts or cash payments in the period.

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- Definition

Contractual interest rate for funds borrowed, under the debt agreement.

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- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

+ References

No definition available.

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- Definition

Percentage price of original principal amount of debt at which debt can be redeemed by the issuer.

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-Publisher FASB
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- Definition

Gross amount of debt extinguished.

+ References

No definition available.

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- Definition

Difference between the fair value of payments made and the carrying amount of debt which is extinguished prior to maturity.

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- Definition

For a debtor, the aggregate gain (loss) recognized on the restructuring of payables arises from the difference between the book value of the debt before the restructuring and the fair value of the payments on the debt after restructuring is complete.

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- Definition

The cash outflow during the period from the repayment of aggregate short-term and long-term debt. Excludes payment of capital lease obligations.

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Debt (Settled) (Details) - USD ($) $ in Millions			3 Months Ended		9 Months Ended
Debt (Settled) (Details) - USD ($) $ in Millions	Oct. 26, 2020	Jan. 17, 2020	Sep. 30, 2020	Sep. 30, 2019	Sep. 30, 2020	Sep. 30, 2019	May 24, 2019
Debt
Debt retirement					$ 2,748	$ 891
Aggregate cash payment					867	917
Aggregate principal amount of debt issued in exchanges					925
Aggregate net gain (loss)			$ 449	$ (12)	$ 396	(39)
6.50% Senior Notes due November 2020
Debt
Debt instrument interest rate stated percentage			6.50%		6.50%
Debt retirement					$ 15	78
6.375% Senior Notes due December 2021
Debt
Debt instrument interest rate stated percentage			6.375%		6.375%
Debt retirement					$ 105	104
3.80% Senior Notes due October 2022
Debt
Debt instrument interest rate stated percentage			3.80%		3.80%
Debt retirement					$ 152	212
0.50% Exchangeable Senior Bonds due January 2023
Debt
Debt instrument interest rate stated percentage			0.50%		0.50%
Debt retirement					$ 401
5.375% Senior Secured Notes due May 2023
Debt
Debt instrument interest rate stated percentage			5.375%		5.375%		5.375%
Debt retirement					$ 21
9.00% Senior Notes due July 2023
Debt
Debt instrument interest rate stated percentage			9.00%		9.00%
Debt retirement					$ 714	497
7.25% Senior Notes due November 2025
Debt
Debt instrument interest rate stated percentage			7.25%		7.25%
Debt retirement	$ 124				$ 207
7.50% Senior Notes due January 2026
Debt
Debt instrument interest rate stated percentage			7.50%		7.50%
Debt retirement					$ 181
8.00% Senior Notes due February 2027
Debt
Debt instrument interest rate stated percentage		8.00%	8.00%		8.00%
Debt retirement					$ 138
Redemption price of debt instrument (as a percent)		100.00%
7.45% Notes due April 2027
Debt
Debt instrument interest rate stated percentage			7.45%		7.45%
Debt retirement					$ 35
8.00% Debentures due April 2027
Debt
Debt instrument interest rate stated percentage			8.00%		8.00%
Debt retirement					$ 35
7.00% Notes due June 2028
Debt
Debt instrument interest rate stated percentage			7.00%		7.00%
Debt retirement					$ 39
7.50% Notes due April 2031
Debt
Debt instrument interest rate stated percentage			7.50%		7.50%
Debt retirement					$ 192
6.80% Senior Notes due March 2038
Debt
Debt instrument interest rate stated percentage			6.80%		6.80%
Debt retirement					$ 390
7.35% Senior Notes due December 2041
Debt
Debt instrument interest rate stated percentage			7.35%		7.35%
Debt retirement					$ 123
Tendered
Debt
Debt retirement					714	510
Aggregate cash payment					767	522
Aggregate net gain (loss)					(65)	(18)
Tendered \| 6.50% Senior Notes due November 2020
Debt
Debt retirement						57
Tendered \| 6.375% Senior Notes due December 2021
Debt
Debt retirement						63
Tendered \| 3.80% Senior Notes due October 2022
Debt
Debt retirement						190
Tendered \| 9.00% Senior Notes due July 2023
Debt
Debt retirement					714	200
Repurchased
Debt
Debt retirement					124	381
Aggregate cash payment					91	395
Aggregate net gain (loss)			$ 21	$ (12)	33	(21)
Repurchased \| 6.50% Senior Notes due November 2020
Debt
Debt retirement					15	21
Repurchased \| 6.375% Senior Notes due December 2021
Debt
Debt retirement					68	41
Repurchased \| 3.80% Senior Notes due October 2022
Debt
Debt retirement					16	22
Repurchased \| 0.50% Exchangeable Senior Bonds due January 2023
Debt
Debt retirement					4
Repurchased \| 5.375% Senior Secured Notes due May 2023
Debt
Debt retirement					21
Repurchased \| 9.00% Senior Notes due July 2023
Debt
Debt retirement						$ 297
Exchanged
Debt
Debt retirement					1,910
Aggregate cash payment					9
Aggregate principal amount of debt issued in exchanges					925
Gains (losses) on restructuring			$ 428		428
Exchanged \| 6.375% Senior Notes due December 2021
Debt
Debt retirement					37
Exchanged \| 3.80% Senior Notes due October 2022
Debt
Debt retirement					136
Exchanged \| 0.50% Exchangeable Senior Bonds due January 2023
Debt
Debt retirement					397
Exchanged \| 7.25% Senior Notes due November 2025
Debt
Debt retirement					207
Exchanged \| 7.50% Senior Notes due January 2026
Debt
Debt retirement					181
Exchanged \| 8.00% Senior Notes due February 2027
Debt
Debt retirement					138
Exchanged \| 7.45% Notes due April 2027
Debt
Debt retirement					35
Exchanged \| 8.00% Debentures due April 2027
Debt
Debt retirement					35
Exchanged \| 7.00% Notes due June 2028
Debt
Debt retirement					39
Exchanged \| 7.50% Notes due April 2031
Debt
Debt retirement					192
Exchanged \| 6.80% Senior Notes due March 2038
Debt
Debt retirement					390
Exchanged \| 7.35% Senior Notes due December 2041
Debt
Debt retirement					$ 123